ML20205R478
| ML20205R478 | |
| Person / Time | |
|---|---|
| Site: | Seabrook  |
| Issue date: | 03/18/1987 |
| From: | George Thomas PUBLIC SERVICE CO. OF NEW HAMPSHIRE |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| Shared Package | |
| ML20205J126 | List: |
| References | |
| REF-PT21-87 NYN-87035, NUDOCS 8704060361 | |
| Download: ML20205R478 (2) | |
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New HampsNre Yankee DMalon NTW-87035 March 16, 1987 United States Nuc aer Regulatory Commission Washington, DC 20555 Attention: Document control Desk
References:
(a) Facility Operating License NPF-56, construction Permit CPPR-136; Docket Nos. 50-443 and 50-444 (b) USNRC Letter, dated March 11,1987, "EAI Regarding Problem With In-Containraent Radiation Detector Signal Coazial Cable," Y. Nerses to R. J. Harrison Subject : Request for Information Regarding CA Technologies 10CFR21 Report on Rockbestos cable Gentlemen In response to Reference (b), New Hampshire Yankee (NEY) condocted a review of engineeringand construction records, and performed a field verification. The reanit of this affort reveals that Rockbestos Cable was not used in conjunction with radiation monitors inside containnent.
ITI-Surprenant cable was used for the Saabrook installation.
NHT has also performed a review of the insulation resistance of the installed cable, connectors, and penetrations for thoes radiation monitors which are the subject of this concern. This revied has determined that the l
radiation monitors and their associated cables are acceptable for use and meet our commitment for accuracy as described in FSAR 5ectiou 7.5.4.1.
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P,0. Box 300. Seabrook. NH_03874. Teiophone M 474 9674
T March 18, 1987 dnitedStatesNelearhaulatorycommission PaAe 2 Attention Document Control Desk Should you have any questions regarding this response, please contact Mr. Verren J. Hall at (603) 474-9574, extension 4046.
Very truly yours, T
George S. Thomas Mr. Victor Norses, Acting Director ec:
PWR Project Directorate No. 5 Division of FWR Licensing &
U. S. Mueleer lagulatory Cocumission Washington, DC 20555 Regional Administrator U.S. helear tegulatory Commission - Ragion I 631 Ftrk Avenue King of Prussia, PA L9406 Mr. A. C. Carne tfRC Senior Resident Inspector Seab cok Station Seabrook, NH 03874 Atomic Safety and Liceting hard Service List 9
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Mdc Servios of New HenpWte New Hampst*e Yankee DMalon NYW-87039
- March 26, 1987 United States Nuclear Regulatory Commaission i
Washington, DC 20555 Attention: Doctament Control Desk l
References (a) facility operating License EFF-56, Construction Perisit CFF1-136 Docket Moe. 50-443 and 50-444 (b) USM C Letter, dated March 11, 1987, " TAI legarding Problem with I W eainment Radiation Detector Signal h wtat Cable," Y. Norses to E. J. Harrison l
i (c) PS M Letter (NTN-87035), dated March 18, 1987, " Request For Information Regarding GA Technologias 10CF121 Raport on Rochbestos cable" Subjectt lequest for Information Regarding GA Technologies 10CFR21 toport on Rockbestos Cable i
Centlemen:
i In a recent discussion with members of the ERC staff, New Hampshire Yankee was requested to clarify the response provided in taference (e).
In that response, it was noted that our review of engineering documents, construction doctaments and field verification revealed that Rockbestoe Cable l
described in the subject 10CFE21 report was not ased in conjunction with i
radiation munitors inside containment.
l To further clarify our response, MRT does not utilise the coaxial type Rockbestos Cable between any GA Radiation Monitoring Instrumentation (e.g.,
the EM-80 microprocessor and the ED-23 fon chamber detector) either inside or outside containment. Tbs Seabrook radiation sositoring design utilises ITT-l surprenant cable, which is folly gnalified for both normal and post accident service envirotunests. Furthermore, NET does not stiliza the Eockbestos cosa:1s1 cable identified in the CA 10CF121 report in any safety related radiation monitoring application at Seabrook Station.
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P.O. Box 300. Seebrook, NH 03874.Teisphone (603 474 9674
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. United States helaar Ragniatory Commission March 26. 1987 Attention Document control Desk Page 2 Should you have any further questions regarding this matter, please contact the Bethesda Licensing office (Mr.1. E. Sweeney) at (301) 65H100.
Yery truly yours, George S. Jbomas cci Mr. Victor Ferses, Acting Director FWE Project Directorate No. 5 Division of PWE Licensing A U. S. Nuclear Regulatory Comunission Washington, DC 20555 Regional Administrator U.S. Euclear Esgulatory Commission - Eagion I 631 Park Avenue King of Prussia. FA 19406 Mr. A. C. Corne NEC Senior Issident Inspector Seabrook Station Seabrook, M 03874 Atomic Safety and Licensing Board Service List l
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